I put a 3 inch universal catalytic converter on my '82 wagoneer and 3 inch pipe and a 3 inch shuttleworth muffler (dicontinued but i got them on my jeep, my corvette, and my womans van) and my mileage savings are close to 30 dollars on a 1300 mile trip.
Last edited by bones_18l; 01-18-2004 at 06:26 AM.
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